Inking mechanism



Patented Sept. 25 1934 UNITED STATES INKING MECHANISM Charles W.Ginsberg, Brooklyn, N. Y., assignor to It. Hoe & 00., Inc., New York, N.Y., a corporation of New York; Irving Trust Company,

temporary trustee Application December 26, 1931, Serial No. 583,311

10 Claims.

This invention in general relates to inking mechanism for printingmachines and more particularly to improved means for obtaining a fineand accurate adjustment of an inking roller relatively to form and inkdistributing cylinders, with a view to the proper distribution of ink onthe coacting members, and the prevention of any lost motion or play andthe like between the roller and the said form and ink distributingcylinders.

Another object is to provide improved means for mounting inking rollersso that the most effective contact pressure between the said inkingrollers and their coacting ink distributing and form cylinders may bedetermined with a view to preventing any tendency in the way oflostmotion, undesired play, chattering, etc., of the said inking rollersand coacting cylinders during operation, after the desired adjustmenthas been made.

A further object is ,to provide a bearing socket assembly for an inkingroller, said assembly having means for adjusting an inking rollertoprevent lost motion, play, and chattering of the same relatively tocoacting form and ink distributing cylinders, during subsequent normaloperation.

, It is also an object of the invention to provide an inking mechanismof generally improved construction, whereby the device will be simple,durable and inexpensive in construction, as well as convenient,practical, serviceable and eflicient in its use.

With the foregoing and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts, and in the details of construction hereinafterdescribed and claimed, it being understood that various changes in theprecise embodiment of the invention herein disclosed may be made withinthe scope of what is claimed without departing from the spirit of theinvention. 7 V o The preferred embodiment of the invention isillustrated, in theaccompanying drawing,

wherein:

characters of reference indicate corresponding parts in the preferredform of the invention, 11 designates one of the side frames of a webroll printing machine on which form and ink distributing cylinders 12,13 respectively are rotatably mounted. Adjustably secured to the frame11, by a screw bolt 14, and washer 10, is a socket or bearing assembly Ain which the present invention is embodied and which adjustably supportsan inking roller 15 as will appear hereinafter.

The assembly A comprises a bearing member 16 formed with an extension orarm 1'7 provided with a slot 18 in which the shank of the screw bolt 14is received for permitting the adjustment of the assembly A.

Referring to Figure 1, it will be seen the arm or extension 1'7 issecured to or made integral with a section 19 of the said bearing member16, to which another section or cap 21 is hingedly secured as by the pinor screw 22. Between the two sections 19 and 21, a bearing or bushing 23is received, in which latter the shaft 24 of the inking roller 15,referred to above, is rotatably mounted. An eyebolt 25, arranged inregistering grooves 26, 27, formed in upper portions or lugs 28, 29respectively of section 19 and cap 21, and pivoted 'on a pin 30'threadedly fastened to section 19, is adapted to receivea wing nut 31which is engaged against the lug 28 of cap 21, whereby means areprovided to clampingly engage or release the bushing 22 in which shaft24 is mounted.

As an important feature of the present invention, and as best shown inFigure 1, the section 19 and arm 17 are formed with a passageway 32communicating with a chamber 33 having a wall 34 which is apertured asat 35 to receive a pin or screw 36 which is fastened to the frame 11.Within the passageway 32, a spring 37 is arranged, one end of the saidspring protruding into the chamber 33 and engaging against'the pin 36,while the other end of the same spring engages the bushing 23,maintaining a constant pressure or tension against the latter, andconsequently the inking roller 24 while adjustments to same are beingmade. The tension or follow-through action exerted by the spring 37permits an accurate or fine adjustment of the inking roller 15relatively to the form and ink distributing cylinders 12 and 13,insuring a more eificient operation of the inking mechanism as willappear hereinafter.

A conventional adjustment for positioning the inking roller 15operatively against the cylinders 12 and 13 mentioned above is shown onthe lower portion of Figure, 1', which includes a cap or adjusting screw38 threadedly secured in an offset portion of a bracket or member 39bolted or otherwise suitably secured to the frame 11 as shown in Figure3, and engaged against the member 16. The conventional adjustment alsocomprises an adjusting screw and lock nut 40, 41 respectively, theadjusting screw 40 being threadedly engaged in the bracket 39 andengaged against a depending portion 42 of the arm 17, whereby theassembly A and consequently the inking roller 15 can be adjustedangularly about the shank of the screw 14, after the screw bolt 14 hasbeen turned to temporarily free or loosen the arm 17.

The functions and operation of :the conventional adjustment abovedescribed are, of course, well-known'but have the recognizeddisadvantage that the inking roller 15 is thrust or dr'awn rigidly andnot resiliently against the form and ink distributing cylinders 12and-13, respectively by the adjusting screws 38 and 40'; In the rigidadjustment thus' obtained, it will be noted that when the said screws38, Adam turned in order tolloosen same for adjusting the inking roller15 relativelyto the form and ink distributing cylinders 12, 13,- lostmotion, chattering, or play in subsequent operation is prone to occurbetween the last-mentioned cylinders and the inking rollers, andparticularly when any inequalities in the surface of the inking rolleror the form and ink distributing stant pressure against the bushing 23which receives shaft 24' of the inking roller 15 during the process ofadjustment by the adjustinglscrews 38, 40, after the screw bolt 14 hasbeen loosened, thus permitting of a fine and accurate, non-chatter ing,'effective contact between the inking roller 15 and the two coactingform and ink distributing cylinders 12 and 13 respectively, duringoperation of the inking mechanism, after the screw bolt 14 has beentightened. It will be observed that the hitherto coarse or rigidadjustment of the inking roller 15 relatively to the form and inkdistributing cylinders 12 and 13 preparatory to operation, eifected bythe screw 38 and the adjusting screw 40, will now be tempered orregulated by the present means in such wise that as the adjusting screwsmentioned'above are turned, the position and pressure of the inkingroller 15 maybe adjusted relatively 'to theform and ink distributingcylinders 12, 13, indicated above to obtain the fine adjustment desired.After the adjustment is made, the screw bolt 14 is tightened and theinking mechanism is then ready for operation.

I am aware that the invention may be embodied in other specific formswithout departing from the spirit or essential attributes thereof, and Itherefore desire the present embodiment to be considered in all respectsas illustrative" and not restrictive, reference being had to theappended claims rather than to the foregoing description to indicate thescope of the invention.

What I claim is:

1. In mechanism of the kind described including. a frame adapted torotatably support an inking roller and form and ink distributingcylinders, an'assembly comprising an ink roller'supporting bearingsecured to means adjustably fastened to said frame, and coactingresilient 'and'non-resile ient means connected to said assembly and tosaid frame for finely adjusting the inking roller relatively to the formand distributing cylinders so that an effective non-chattering contactof the said rollers and cylinders during subsequent operation may beobtained.

2. An adjustable bearing support for the shaft of an inking roller,comprising a member receiving a bearing in which said shaft is rotatablymounted, a spring engaged at one end against said bearing and at anotherend against an element fastened to a frame whereon said bearing supportis mounted, and a plurality of threaded members connected to the frameand the member for angularly adjusting said bearing, said springexerting constant pressure against said bearing suppcrt maintaining sameunder tension against the threaded members while adjustments to theinking roller are being made by the threaded members. i

ing assembly pivotally mounted on a frame form-;

ing a :part of a printing machine, said assembly accommodatinga shaft ofan inking roller, means connected to the mechanism. for moving saidassembly and consequently the inking'roller relatively to a formcylinder and an ink distributing cylinder mounted on said frame, andresilient means connected to said bearing assembly for regulating theaction of the first-mentioned means whilecmoving the assembly, forpreventing play and lost motion of the inking rollerrelatively to saidform and ink distributing cylinders during subsequent operation.

4. A device of the kind described comprising an assembly detachablysecurable to a frame, said assembly receiving a spring engaged againstsaid frame and a bearing accommodating a shaft of an inking roller, saidbearing being detachably secured in the assembly, and screw-threadedmeans mounted on said frame and engaged with said assembly for obtainingan efiieient adjustment of the inking roller relativelylto form-andimpression cylinders mounted on 'saidframe.

5. A device of the kind described comprising means for supporting aninking rolleron a frame, screw-threaded means secured'to'the frame, forapplying and varying an effective cont'ac't pressure exerted by saidinking roller on coacting form and impression cylinders arranged-on saidframe, and resilient means connected'to said device and frame forregulating the contact pressure applied during adjustment periods bysaid screwthreaded means.

'6. In a mechanismof the kind described, comprising means "forsupporting an inking roller on a frame and adjusting it inoperativerela'tionto an ink cylinder and to a printing form "carried ona form cylinden'bearing socketsfor the inking roller, a plurality ofscrew adjusting'means adapted to move each'bearing socket in twointersecting planes to bring the rollers into engagement with the inkcylinder andwith the form, and resilient means tending'to'force the inkroller "away from the cylinder and the form, a

'7. In a'mechanism of the kind described, comprising means forsupporting an inking roller on a frame and adjusting it inoperativerelation to an ink cylinder and to a printing form carried on aform cylinder,-bearing sockets forithe ink roller, a plurality of screwadjusting means adapted to move each bearing socket in two intersectingplanes to bring the rollers into engagement'with the ink cylinder andwith the form, springs tending tofor'ce'the ink roller away fromthe=cylinder andtheform, and means for rigidly securing the sockets tothe frame.

8. The combination with rollers of an inking mechanism for a printingmachine, of adjustable sockets, an inking roller rotatably supported bythe sockets, separate means for adjusting each socket thereby moving theink roller in different directions relative to the rollers of the inkingmechanism, and a common resilient member for each socket exertingtension on the sockets in opposition to the separate socket adjustingmeans.

9. The combination with rollers of an inking mechanism for a printingmachine, of pivoted sockets, an inking roller rotatably supported by thesockets, separate means for adjusting each socket in differentdirections about its pivot thereby universally adjusting the ink rollerrelative to the rollers of the inking mechanism, and a common resilientmember for each socket imparting tension to the socket in opposition tothe separate socket adjusting means.

10. The combination with rollers of an inking mechanism for a printingmachine, of adjustable sockets, an inking roller rotatably supported bythe sockets, means for adjusting each socket, and a resilient memberpositioned Within the socket and reacting against an external member toimpart a tension to the socket in opposition to the adjusting means.

CHARLES W. GINSBERG.

